Zobrazeno 1 - 10
of 469
pro vyhledávání: '"Zhongping, Zhang"'
Publikováno v:
Data Science and Engineering, Vol 9, Iss 2, Pp 133-151 (2024)
Abstract Multi-behavior recommendation systems exploit multi-type user–item interactions (e.g., clicking, adding to cart and collecting) as auxiliary behaviors for user modeling, which can alleviate the problem of data sparsity faced by traditional
Externí odkaz:
https://doaj.org/article/ba54b49cfe3c431e9b1eb414ed1cc9b5
Publikováno v:
地球与行星物理论评, Vol 54, Iss 5, Pp 581-586 (2023)
Remote sensing satellite SiCH-2 from Ukraine was launched in 2011. At present, it has stopped working and is out of control, and it has been forecasted to become space debris by a two-line root (TLE) from the North American Air Defense Command (NORAD
Externí odkaz:
https://doaj.org/article/7a1aa600a4d64847af199164f2c58e88
Autor:
Xiaodan Li, Rui Chen, Xi Xu, Zebin Xiao, Xiaoyu Wei, Yuelong Yang, Zhongping Zhang, Zhigang Wu, Yanjie Zhu, Hui Liu
Publikováno v:
BMC Medical Imaging, Vol 23, Iss 1, Pp 1-8 (2023)
Abstract Background The aim was to compare the diffusion tensor imaging (DTI) indices derived from human hearts between 1.5 T and 3.0 T scanners. Additionally, the reproducibility of DTI indices was assessed between 1.5 T and 3.0 T scanners. Methods
Externí odkaz:
https://doaj.org/article/45087c53ce6e48f59574a7c0c0b58d88
Publikováno v:
Earth and Planetary Physics, Vol 7, Iss 1, Pp 131-135 (2023)
The origin and spatial−temporal variation of the Earth’s magnetic field (EMF) is one of the important scientific problems that has long been unsolved. The Macau Science Satellite-1 (MSS-1) under construction is China’s first high-precision EMF
Externí odkaz:
https://doaj.org/article/22a34370d7b54b44bed2d4cbc8574c3a
Publikováno v:
Tongxin xuebao, Vol 43, Pp 186-195 (2022)
For the problem that peak density clustering algorithm requires human set parameters and high time complexity, an outlier detection algorithm based on fast density peak clustering outlier factor was proposed.Firstly, k nearest neighbors algorithm was
Externí odkaz:
https://doaj.org/article/1f9a7b432c94409aa7b9f7ec74667f41
Autor:
Mingliang Long, Huarong Deng, Haifeng Zhang, Kai Tan, Hai sheng Lin, Zhibo Wu, Zhongping Zhang
Publikováno v:
Frontiers in Physics, Vol 10 (2023)
With the development of aerospace and space scientific research, satellite laser ranging (SLR) has put forward higher requirements for response speed, data density, and measurement accuracy. In coaxial common optical path laser ranging, the emitted l
Externí odkaz:
https://doaj.org/article/552b237e6d194047b689056bfe42b2c9
Publikováno v:
Frontiers in Physics, Vol 10 (2023)
Picosecond pulse laser is the main light source for satellite laser ranging. In this paper, a 10 kHz repetition rate picosecond green laser with an average output power of 5.3 W is demonstrated. The laser generates a pulse width of 18.6 ps at a cente
Externí odkaz:
https://doaj.org/article/c2ed0ead43b64bdcb5261e3f748e9b5c
Autor:
Yunzhu Liu, Shiyong Li, Dongdong Hao, Zhongping Zhang, Yongxin Yi, Jiayang Fang, Weizhi Lin, Min Zhang
Publikováno v:
Frontiers in Neuroscience, Vol 16 (2022)
The purpose of this study was to assess the efficacy and safety of the combination of tirofiban with intravenous thrombolysis (IVT) in treating patients with capsular warning syndrome (CWS) who failed to respond to the treatment of intravenous thromb
Externí odkaz:
https://doaj.org/article/ad32d1b657b4404fbeb46b49a1ade963
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
Satellite laser ranging (SLR) had been operated at a pulse repetition frequency (PRF) from ∼10 Hz to 10 kHz; the ultra-high PRF of SLR (UH-SLR) is a trend of development. In this study, an alternate working mode of laser firing and gated pulse burs
Externí odkaz:
https://doaj.org/article/2979090ea9574cefbd8eee30892c05b2
Publikováno v:
Tongxin xuebao, Vol 42, Pp 133-143 (2021)
An outlier detection algorithm based on entropy weight distance and relative density outlier factor was proposed to solve the problem of low accuracy in complex data distribution and high dimensional data sets.Firstly, entropy weight distance was int
Externí odkaz:
https://doaj.org/article/92a7bde630614f0290c18bfd240990e8